81987050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{26881}}^1$

素因数の和:26954

約数の個数: 24

約数和(自身を含む): 155001612

約数和(自身を除く): 73014562

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 26881, 53762, 134405, 268810, 672025, 1344050, 1639741, 3279482, 8198705, 16397410, 40993525, 81987050]

約数ペア:

[(1, 81987050), (2, 40993525), (5, 16397410), (10, 8198705), (25, 3279482), (50, 1639741), (61, 1344050), (122, 672025), (305, 268810), (610, 134405), (1525, 53762), (3050, 26881)]